{
  "$schema": "https://vega.github.io/schema/vega-lite/v2.json",
  "config": {"background":"#ffffff"},     
  "width": 600,      
  "data": {"url": "data/complaints.csv",     "format": {"type": "csv"}},
  "mark": "area",
  "encoding": {
    "x": {
      "timeUnit": "yearmonth", "field": "Date received", "type": "temporal",
      "axis": {"title": "Date Received"}
    },
    "y": { "aggregate": "count", "type": "quantitative"},
    "color": {"field": "Product", "type": "nominal"}
  }
}